Sleeve for a pistol grip



FIG. 1 is a front left bottom perspective view of a sleeve for a pistol grip showing our new design;

FIG. 2 is a rear left top perspective view thereof;

FIG. 3 is a right side elevational view, the left side being a mirror image thereof; and,

FIG. 4 is a front elevational view thereof.

The broken line showing of a pistol in FIG. 3 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a sleeve for a pistol grip, as shown and described. 